IMSTR 453 drivers/iommu/ipmmu-vmsa.c ipmmu_ctx_write_root(domain, IMSTR, ipmmu_ctx_read_root(domain, IMSTR)); IMSTR 543 drivers/iommu/ipmmu-vmsa.c status = ipmmu_ctx_read_root(domain, IMSTR); IMSTR 557 drivers/iommu/ipmmu-vmsa.c ipmmu_ctx_write_root(domain, IMSTR, 0);